572506538 has 8 divisors (see below), whose sum is σ = 860744388. Its totient is φ = 285591744.

The previous prime is 572506531. The next prime is 572506541. The reversal of 572506538 is 835605275.

It can be written as a sum of positive squares in 2 ways, for example, as 498494929 + 74011609 = 22327^2 + 8603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 572506495 and 572506504.

It is not an unprimeable number, because it can be changed into a prime (572506531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329681 + ... + 331412.

Almost surely, 2^572506538 is an apocalyptic number.

572506538 is a deficient number, since it is larger than the sum of its proper divisors (288237850).

572506538 is a wasteful number, since it uses less digits than its factorization.

572506538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661528.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 572506538 is about 23927.1088516770. The cubic root of 572506538 is about 830.3480119941.

The spelling of 572506538 in words is "five hundred seventy-two million, five hundred six thousand, five hundred thirty-eight".